Ju-cheol Park

jukrap628@gmail.com

About Me

I'm Ju-cheol Park, a web and mobile developer.

I build interfaces around the way people work.

I built search, reservation, Excel import and label-printing features with React and TypeScript. I created shared tables and forms and connected API responses to screen displays and printing.

I separate server data from editing state in the UI.

In the logistics and stock administration apps, I used TanStack Query for data fetching and list refreshes after saves, keeping selected items and modal visibility separate. In the settlement ERP, I separated saved values from editing drafts so users retained their input after failed saves and retries.

I look beyond the interface to the systems it connects to.

I also developed Spring Boot APIs and integrated Android printing. For Bluetooth printing, I checked WebView requests, Android permissions and device SDK calls in order, then verified label output on a physical device.

Skills

Languages: TypeScript, JavaScript, Java
Frontend: React, Next.js, Vite, TanStack Query, Zustand, Tailwind CSS
Mobile: React Native, Expo, Android Java, Gradle
Testing/Observability: Vitest, MSW, Storybook, Sentry
Tools & Data: Node.js, MariaDB, SQLite, Firebase, Google Cloud Platform, AWS, Jenkins, Docker

Career

Triphos

2026.02 ~ Present

Web & Mobile Developer

Built React and TypeScript business interfaces, shared components and UI state handling.

Developed logistics, chart editing, settlement and administration screens, along with Spring Boot APIs and Android integrations. Extended and maintained existing web and mobile apps.

Activity

Study Group Organizer

2024.05 ~ 2025.06

Coding-test and development knowledge study groups

Operated two study groups covering coding tests and development knowledge.

Programmers Dev Course

2024.05 ~ 2024.09

Cloud Application Engineering Course - Assistant Mentor

After being selected as an excellent graduate in a previous cohort, I mentored students in the second cohort of the course.

Mentoring topics included weekly development information sharing, graduate concerns, daily scrum participation, development problem solving, and project checks.

Programmers Dev Course

2023.12 ~ 2024.05

Cloud Application Engineering Course - Student

Completed a Cloud Application Engineering course focused on React and React Native development.

Training focus: React and React Native.

Study Mentor

2021.09 ~ 2022.02

Mentor-mentee coding mentoring

Participated in a study where I mentored mentees in programming and development topics.

Awards

DIVE 2024 Hackathon

2024.10

Busan Technopark President's Award

Gyeongsang National University AI Art Exhibition

2022.11

Encouragement Award

Submitted work: Sunset

Used Stable Diffusion

Coding Competency Enhancement Campus Competition

2021.10 ~ 2021.11

Pioneer Award

Gyeongnam Software Competition

2021.08 ~ 2021.10

Grand Prize

Work

AI Document and Data Analysis Platform

2026.09 ~ Present

Owned full-stack development of an AI analysis platform, improving retrieval context, Ragas evaluation and compound answers while reducing repeated computation through profiling.

New development · In progressFull-stack development · AI quality

React, TypeScript, Tailwind CSS, Vite, TanStack Query

Settlement ERP Platform

2026.07 ~ 2026.09

Built shared editing tables, Excel imports and settlement history, and revised administrator work logs.

New developmentERP web and key server APIs, plus feature extensions to existing user web and mobile apps

React, TypeScript, Tailwind CSS, Vite, React Router

Logistics Operations Web and Printing App

2026.04 ~ 2026.06

Built search, reservations, Excel imports and PC/Android label printing.

BuildComplete frontend and Android printing app development

React, TypeScript, Vite, React Router, TanStack Query

Stock Operations Admin Web

2026.02 ~ 2026.03

Built shared tables, filters and modals, and checked screen behavior with MSW mock APIs.

New frontend buildComplete frontend development

React, TypeScript, Vite, React Router, TanStack Query

S.Projects

2026.06 ~ Present

A harness for managing project records and skills across AI coding tools.

Solo development

CLI for records in single projects and multi-repository workspaces.

Read-only MCP with paginated record access.

User-edit preservation, skill migration and recovery.

npm distribution and English/Korean guides.

JavaScript, Node.js, MCP SDK, Zod, GitHub Actions

2024.10

A real-time guide service for Donghae Line passengers.

Frontend development

Google Maps-based map service development.

Real-time station congestion, weather, restaurants, and route recommendations.

Draggable modal UI/UX implementation.

Won the Busan Technopark President Award (3rd place in the challenge track) at DIVE 2024.

TypeScript, React, Next.js, Tailwind CSS, Google Maps Platform, Storybook

2024.07 ~ 2025.06

A web service with blogs, tests and job listings for aspiring developers.

Frontend development and DevOps

Blog feature development.

Test-based development and error monitoring.

TypeScript, React, Next.js, Tailwind CSS, Jotai, Jest, Storybook, Sentry, AWS, Jenkins, Docker

2024.04 ~ 2024.06

A cross-platform app for sharing and joining hobby activities.

React Native app development and Firebase integration

Owned the full community feature area.

Built reusable toast and modal components.

Improved image resizing and caching.

Applied pull-to-refresh and infinite scroll.

Designed the database structure.

JavaScript, React Native, Firebase, Realtime Database

2022.07 ~ 2023.05

An app that detects sitting and exercise posture and displays the results.

Team lead and Android developer

Owned sitting and exercise posture detection pages.

Built posture detection and MediaPipe extraction features.

Multi-threading and optimization.

Java, Android Jetpack, MediaPipe, SQLite